Improvement in spring bed-bottoms



NTTED STATES PATENT OFFICE. N

HENEY A. HIGHT, sn., oE EoET WAYNE, INDIANA.

IMPROVEMENT IN SPRING BED-BOTTOMS.

Specification forming part of Letters Fatent No. 146,072, dated December 30, 1873; application filed December 3, 1873.

To all whom it may concern:

Be it known that I, H. A. HIGHT, Sr., of Fort Wayne, in the county of Allen and State of Indiana, have invented certain new and useful Improvements in Spring Bed-Bottoms, and I do hereby declare that the following is a full, clear, and exact description' thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon, which form a part of this speciiication.

The nature of my invention consists in the construction and arrangement of a spring bedbot-tom with equalizing spring-bars and coupling, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which lny invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed` drawing, in which- Figure 1 is a top or plan view of my invention. Fig. 2 is a central section on line x Fig. 1. Fig. 3 is a cross-section on line y y, Fig. 1. Fig. 4 is a detail view of springs D. Fig. 5 is a detail section of springs D. Fig. 6 is a detail view of cross-bar B, showing slot in spring D.

A A represent a series of slats, secured near each end to a cross-bar, B, and supported in the center, each upon a spiral spring, C, and these springs are all secured on top of a similar cross bar. Under each of the cross bars B are arranged two steel springbars, D D. These springbars are fastened, one at each end of a cross-slat or cross-bar, E, in the bedstead, and then they cross each other, and their other ends are attached to the ends of the cross-bar B of the bed-bottom by means of screws or headed pins a a passing through slots in the ends of the springbars. One end of each spring-bar is thus rigidly attached to its support, while the other end is allowed to slide a distance equal to the length of the slot in its end, thereby allowing the bed-bottom to sink vertically downward. Each pair or set of spring-bars D D is coupled together by means of a coupling, G, which consists simply of a double link, or a link with two openings, one "for each springbar. This coupling G is rigidly attached toyone of the spring-bars, while the other bar passes loosely through it; hence when either of the bars is moved, either up or down, the other bar must necessarily move to correspond. For this reason, what ever weight maybe placed on either `side of the bed-botto1n, the whole will settle down perfectly even and level, thespring-bars D D, with their couplings forming a complete equalizin g attachment for the bed-bottom. b b represent rubber bands, one at each end of the y bedstead, connecting the cross-bars Band E, s

and preventing the bed-bottom from moving up too far.

The equalizingbars D D,with their coup- 1. The equalizing spring-bars -D D, rigidly` fastened at one end to Aa support, their other ends sliding on the part supported by them, and the bar connected by a coupling, G, which is rigidly secured to one and moving loosely upon the other bar, all arrangedto operate substantially as and for the purposes herein set forth.

2. The equalizing spring-bars D Din combiuation with the coupling G and bed-bottom A B, all arranged substantially as and for the purposes herein set forth.

3. A spring bed-bottom composed of the i bottom A B, spiral springs C C, spring-bars D D, and links or couplings G G, all constructed substantially as and for the purposes herein set forth.

In testimony that `I claim the foregoing as my own I afx .my signature in presence of two witnesses.

HENEY A. HIGHT, sa. Witnesses JOHN E. RoEBINs, STEPHEN CHASE. 

